package TestDemo;

public class ArrayTest
{
    float f[][]=new float[6][6];
    float []a[]=new float[6][6];
    //float b[][]=new float[][6];//出错
    float [][]c=new float[6][6];
    float [][]d=new float[6][];
    public static void main(String[] agrs){

        StringBuffer s1=new StringBuffer(10);
        ((ArrayTest)null).testMethod();
        s1.append("1234");
        System.out.println(s1.length());
        System.out.println(s1.capacity());
        }

    private static void testMethod(){
        System.out.println("testMethod");
    }
}
